private void FTestPartAsynWait_Load(object sender, EventArgs e) { items.Add(new CobITemInfo("yf", 23)); items.Add(new CobITemInfo("zhn", 31)); items.Add(new CobITemInfo("tq", 18)); DropdownBoxHelper.BindingIEnumerableGenericToComboBox <CobITemInfo>(comboBox1, items); //DropdownBoxHelper.BindingIEnumerableGenericToComboBox<CobITemInfo>(comboBox1, items, string.Empty); //DropdownBoxHelper.BindingIEnumerableGenericToComboBox<CobITemInfo>(comboBox1, t => { return t.Name; }, items); //DropdownBoxHelper.BindingIEnumerableGenericToToolStripComboBox<CobITemInfo>(toolStripComboBox1, items, nameof(CobITemInfo.Name)); //DropdownBoxHelper.BindingIEnumerableGenericToToolStripComboBox<CobITemInfo>(toolStripComboBox1, items); DropdownBoxHelper.BindingIEnumerableGenericToToolStripComboBox <CobITemInfo>(toolStripComboBox1, t => { return(t.Name); }, items); }